What powers r2library.com?
Last seen Jun 2026 · 16 technologies across 11 categories
Analytics
Google Analytics
since Jun 2018
CDN
Google Hosted Libraries
since Mar 2022
CMS
Kontent.ai
since Oct 2022
JavaScript libraries
Load balancers
Amazon ALB
since Oct 2022
Marketing automation
Operating systems
Windows Server
since Jun 2018
PaaS
Amazon Web Services
since Oct 2022
Video players
Web frameworks
Web servers
Audience
- 86% desktop
- 14% phone
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.43 / 10 · ranked #967,811 of all domains
55 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- Weight: 2.5 MB · 36 requests
Homepage as crawled by the HTTP Archive, Jul 2026.